I've got the USB connector there, trying to add holes for it, but look, they overlap. I'm certain my drawing on the left is correct, the hole positions are a direct overlay of the DXF they provide, and all the 2.48mm headers fit just fine.
You can use the Rx/Tx (RS232 style, 5V) with PPP. On this port you make PPP run, not huge speed: 115200 bit/s.
4) The UART itself has no throughput limitations in fact it can run up to 32 Mega baud. But doing so requires significant CPU involvement as it has shallow FIFOs and no DMA support.
You can use the Rx/Tx (RS232 style, 5V) with PPP. On this port you make PPP run, not huge speed: 115200 bit/s.
Actually you can go a lot higher with a Raspberry Pi. Let me quote the BCM2835 ARM Peripherals document:Quote4) The UART itself has no throughput limitations in fact it can run up to 32 Mega baud. But doing so requires significant CPU involvement as it has shallow FIFOs and no DMA support.https://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf Page 10, at the very bottom.
The Allwinner H3 seems to be pretty similar but I wasn't able to find reliable numbers.
behold, a little CAD model concept.
What do you think of something like this, Dave?
impressive waste of time
If you don't have anything positive to contribute them please just ignore it.
did you miss the second half?
I think it was made perfectly clear in the video why this was being done and why it was being done in this way.
Performance was specifically stated as NOT the primary aim. So my question is why make performance the primary focus of your criticism? Now that's an epic facepalm moment for you.
Learning how to set up ethernet over an SPI bus is generically useful information that may be applicable in other situations.
behold, a little CAD model concept.
What do you think of something like this, Dave?
That's like what I had in mind. Either back-to-back to center heatsink, back-to-backoutside to a long thin machined aluminium brick that becomes the housing as well. i.e. it's like a "blade" cluster module. Ethernet and 12V/24V power one end (+maybe serial monitor), and status leds on the other end.
Other option is an extruded aluminium case as I had in mind before with rows of vertical boards inside. Have to be mounted longitudinally of course for airflow.
CM800: What is the most elegant way to re-fill the third hole? Any method more elegant than a bolt+O-ring?
Its my autistic brain :/ There are only correct or wrong solutions.